Fireproof construction.



G. A. P. TURNER.

. FIREPROOF CONSTRUCTION.

7 APPLICATION IILED SEPT. 6, 1904.

1,097,998. P ented May 26, 1914.

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C. A. P. TURNER.

FIREPROOF CONSTRUCTION. APPLICATION FILED SEPT. 6

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CLAUDE A. r. TURNER, or-ivrnvivnaronrs, MINNESOTA.

FIREIE'ROOF CONSTRUCTION;

Specification of Letters Patent.

Patented May 26, 1914.

Application filed September 6, 1904. Serial No. 223,549.

To all whom it may concern:

Be it known that I, CLAUDE A. P. TURNER, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Fireproof Construction, of which the following is a specification.

My invention relates in general to fireproof construction, in particular to combined steel and concrete construction and it consists of certain skeleton construction of columns, floor beams, and floor plates, subsequently filled with concrete or cement, thereby constituting supports and beams of great strength and rigidity.

The object of my invention is to distribute the steel reinforcements of the columns in such manner that the central area thereof shall be clear, for convenience in filling in the concrete and to better provide for the shear of the concrete steel girders connecting the columns than is usually done; to reinforce these in such a manner that the series will act as continuous girders, arranged preferably to support the floor slabs on four sides and reinforcement of the floor slabs to carry the weight to the girders.

Another object sought in the reinforcement of the columns is to restrain the concrete laterally, which object is accomplished by the bands and vertical rods acting as a grille.

In the accompanying drawing which forms an important part of this application Figure 1 is a vertical section of column, floor beam, and supporting wall, constructed in accordance with my invention; Fig. 2 a cross section of a skeleton column; Fig. 3 a cross section of a filled and finished column; Fig. 4. a fragmentary vertical section of a skeleton column; Fig. 5 a group of binding or tie rods; Fig. 6 a detail, being one of the Vertical column rods; Fig. 7 a horizontal section of Fig. 1 taken on the line 77 and Fig. 8 a plan view, partly in section.

Similar letters refer to similar parts throughout the several views, A being the supporting wall; B the columns; C the floor beam; D the supporting rods; E the floor joists and F the floor boards.

The supporting wall A consists of ma.

. wire netting or expanded metal surrounding sonry as stone, brick, concrete and the like.

The columns B consist of a group of vertical rods or compression members a, con

nected at suitable intervals intermediate their length, by means of bands or rings 6, which bands are secured thereto by means of U clamp a, after which the said rods, bands and clamps are incased by wire netting or expanded iron, the whole constituting a frame work or skeleton column adapted to be filled with concrete. The rods a constituting the compression members may be tangentially bent outward as shown at their upper ends, the diverging portions serving as the skeleton work for an enlarged portion or capital.

The floor beam C is similar in construction to the column B, in that it consists of a skeleton or frame adapted to be filled and covered. It consists of the tension rods cl which rods have their anchorage in and connect the supporting walls, the column, and the walls, or the columns, as the case may be. These tension rods are then incased by a netting of woven wire or a sheet of eX- panded metal 6, thereby forming a skeleton beam adapted to be filled and covered, or embedded in cement. The supporting rods D are laid in transverse courses upon the floor beams O as shown in Fig. 7 and covered with a course of concrete or cement f. These rods (D) have their ends laterally and backwardly bent (hooked) thereby adapting adapting them (when incased by the concrete) to operate as tension members as well as supporting bars.

The nailing strips E are laid upon the cement covering 7, the usual filling applied and the floor boards F nailed thereon, in the usual manner.

The column rods being bent laterally outward at their upper ends to take shear, the horizontal outward component of shear on the column rods is taken care of by the column encircling ring or band at the top or in the upper part of the column.

.VVhat I claim as new and desire to secure by Letters Patent is.

In fire proof construction, the combination of the vertical rods or compression members forming skeleton columns; bands or rings intermediate the length and incasing the said rods: clamps uniting the said rods and bands; horizontal tension rods supported by the said columns, a covering of the said vertical rods, bands and clamps, to form skeleton columns; simllar covering surrounding the said horizontal tension rods to form floor beams; a filling of concrete or the said crossed rods, all substantially as shown like for the said columns and floor beams; and described. a course of supporting rods laid upon and CLAUDE A P TURNER connecting the said columns; a second course of supporting rods laid upon, and trans- Witnesses: Versely to the first named course of support- E. PETERSON, ing rods; a course of concrete laid upon the F. G. O?BR1;EN.

copies or this patent may he obtained for five cents each, by addressing the "Commissioner of Patents, Washington, 13.0. 

